Timing Protocol
Expert-analyzed timing recommendations for electrolytes based on what 5 longevity researchers say about when, how, and what to take it with.
Quick Timing Guide
First thing in the morning with water for hydration (Huberman). During exercise per the Galpin equation. During fasting periods to maintain electrolyte balance. After sauna or heavy sweating (Johnson). Avoid large sodium intake without adequate water.
Moderate Consensus
on Electrolytes overall
Timing
First thing in the morning with water for hydration (Huberman). During exercise per the Galpin equation. During fasting periods to maintain electrolyte balance. After sauna or heavy sweating (Johnson). Avoid large sodium intake without adequate water.
Dosage
Sodium: 1,600-3,200mg/day for healthy, active adults with normal blood pressure (Huberman). Reduce to <2,300mg if hypertensive (Attia). Potassium: 3,500-4,700mg/day primarily from food sources (Patrick, Hyman). Magnesium: 300-500mg/day supplemented (see Magnesium report for details).
Form
Electrolyte drinks or powders containing sodium, potassium, and magnesium for exercise and fasting. Sodium-free salt substitutes (potassium chloride) for cooking if limiting sodium (Johnson). Whole food sources preferred for potassium: avocados, spinach, sweet potatoes, bananas.
Notes
Blood pressure is the critical context variable for sodium intake. If blood pressure is elevated (>120/80), prioritize sodium restriction before supplementation (Attia). Active individuals who sweat heavily need significantly more electrolytes than sedentary people. Salty-sweet food combinations bypass homeostatic regulation and drive overconsumption — avoid processed foods that combine salt, sugar, and fat (Huberman, Hyman). Potassium and sodium work in opposition: increasing potassium intake can help counterbalance sodium's blood-pressure-raising effects.
Huberman has a dedicated 2-hour episode on salt and its role in mental and physical performance. He covers the neurobiology of sodium sensing through the OVLT, the kidney's role in fluid balance via vasopressin, the J-shaped curve of sodium health risks, and practical electrolyte supplementation protocols. Across multiple episodes, he emphasizes that hydration with electrolytes is essential for neuron function, recommends electrolytes during fasting, and provides the Galpin equation for exercise hydration. He also warns that salty-sweet food combinations can bypass homeostatic regulation and drive overconsumption.
Go beyond the consensus — see exactly what each expert says about electrolytes.